The steam power system ( SPS) should be operated under the optimal scheme to meet the varying demand of steam and power from process, to reduce cost and save energy for petrochemical industry.

• 为了满足石化企业工艺过程对蒸汽和电力不断变化的需要,实现企业降低成本、节能降耗的目的,必须保证蒸汽动力系统在最优状态下运行。